(I had been considering posting to this thread, but had hesitated until I saw where it was going, but now I'll just go ahead.)
I, along with four other apuggers, have started on a project to photograph places of worship. Being five of us, there are multiple perspectives and motivations for participating in the project. Religion and faith play a part, but so does various interests in history, preservation, art, architecture, anthropology, sociology, etc.
It will be intersting to see how this all turns out, and we will let you (APUG) know.
I'm not sure if we will touch on Mark's motivations or not. We'll see.